diff options
| author | Pavel Begunkov <asml.silence@gmail.com> | 2022-09-23 14:53:25 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-09-23 15:04:20 -0600 |
| commit | aa1df3a360a0c50e0f0086a785d75c2785c29967 (patch) | |
| tree | a02d7afe126c810f9e0c32dcf7982c7a01027f2e /lib/string_helpers.c | |
| parent | a75155faef4efcb9791f77e2652e29ce8906e05a (diff) | |
io_uring: fix CQE reordering
Overflowing CQEs may result in reordering, which is buggy in case of
links, F_MORE and so on. If we guarantee that we don't reorder for
the unlikely event of a CQ ring overflow, then we can further extend
this to not have to terminate multishot requests if it happens. For
other operations, like zerocopy sends, we have no choice but to honor
CQE ordering.
Reported-by: Dylan Yudaken <dylany@fb.com>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/ec3bc55687b0768bbe20fb62d7d06cfced7d7e70.1663892031.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'lib/string_helpers.c')
0 files changed, 0 insertions, 0 deletions